Wireless Sensor Networks Muneeb Ali‚ Tashfeen Suleman‚ and Zartash Afzal Uzmi Computer Science Department‚ LUMS {muneeb‚tashfeens‚zartash}@lums.edu.pk Abstract Mobility in wireless sensor networks poses unique challenges to the medium access control (MAC) protocol design. Previous MAC protocols for sensor networks assume static sensor nodes and focus on energyefficiency. In this paper‚ we present a mobilityadaptive‚ collision-free medium access control protocol (MMAC) for mobile sensor networks
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Improvement on LEACH Protocol of Wireless Sensor Network (VLEACH) M. Bani Yassein‚ A. Al-zou’bi‚ Y. Khamayseh‚ W. Mardini Improvement on LEACH Protocol of Wireless Sensor Network (VLEACH) M. Bani Yassein‚ A. Al-zou’bi‚ Y. Khamayseh‚ W. Mardini Department of Computing Science‚ Jordan University of Science and Technology E-mail: {masadeh@just.edu.jo‚ a_zo3bi@yahoo.com‚ yaser@just.edu.jo‚ mardini@just.edu.jo } doi: 10.4156/jdcta.vol3.issue2.yassein Abstract This paper presents a new version of LEACH
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This is a report addressing to Research In Motion (RIM)’s board of directors’ request to review its vision and mission statements and to evaluate of how well RIM’s resource strengths and competitive capabilities match the industry’s key success factor. 1. Vision and Mission Statement Identification Upon research‚ there is no information regards on any vision and mission statement pre-developed by RIM. However‚ to bring RIM success to a higher level‚ we suggest you to look into our
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Specification Principle of Operation The operation of the robotic vacuum is going to be based on retrieving data from an array of inputs that will tell the condition of the floor space around the vacuum. These inputs include sonar‚ touch sensors‚ and a digital compass. Each of these parts will be described in further detail further on later in the documentation. The data from these inputs will be fed into the chip(s) which through its software program will decide which direction the vacuum
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Merrily We Roll Along! Purpose: To investigate the relationship between distance and time for a ball rolling down an incline. Data: Table A | Time (s) | Incline 25° | Distance (cm) | Trial 1 | Trial 2 | Trial 3 | Average | 20.5 | 0.31 | 0.32 | 0.29 | 0.31 | 41 | 0.47 | 0.27 | 0.38 | 0.37 | 61.5 | 0.51 | 0.52 | 0.31 | 0.45 | 82 | 0.67 | 0.54 | 0.45 | 0.55 | 102.5 | 0.69 | 0.90 | 0.58 | 0.72 | 123 | 0.88 | 0.67 | 0.58
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Sensors 2012‚ 12‚ 4213-4236; doi:10.3390/s120404213 OPEN ACCESS sensors ISSN 1424-8220 www.mdpi.com/journal/sensors Article A Real-Time Measurement System for Long-Life Flood Monitoring and Warning Applications Rafael Marin-Perez 1‚ ‚ Javier Garc´a-Pintado 2‚3 and Antonio Skarmeta G´ mez 1 ı o 1 Department of Information and Communication Engineering‚ University of Murcia‚ Campus de Espinardo‚ E-30100‚ Murcia‚ Spain; E-Mail: skarmeta@um.es 2 Euromediterranean Water Institute‚ Campus
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Absorption…………………………………………………..... 13 Spreading Loss………………………………………………..14 Range‚ SNR…………………………………………………....14 Multipath………………………………………………………16 Communication in underwater acoustic sensor networks Introduction…………………………………………………..18 Need for acoustic sensor networks…………………………..18 Drawbacks in the existing access control And routing protocols………………………………………..19 UW-ASN communication architecture……………………….21 A protocol
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Engineers: Statics Contents Introduction Rectilinear Motion: Position‚ Velocity & Acceleration Determination of the Motion of a Particle Sample Problem 11.2 Sample Problem 11.3 Uniform Rectilinear-Motion Uniformly Accelerated RectilinearMotion Motion of Several Particles: Relative Motion Sample Problem 11.4 Motion of Several Particles: Dependent Motion Sample Problem 11.5 Graphical Solution of RectilinearMotion Problems Other Graphical Methods Curvilinear Motion: Position‚ Velocity & Acceleration Derivatives
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The technology for Leap Motion was first developed in 2008‚ while co-founder David Holz was studying for a Ph.D. in mathematics. Following an initial angel investment‚ Holz co-founded the company in 2010 with his childhood friend Michael Buckwald. The company raised a $1.3M seed financing round in June 2011 with investments from venture capital firms Andreessen Horowitz‚ Founders Fund‚ and SOSventures‚ as well as several angel investors.[3] In May 2012‚ Leap Motion announced a $12.75M Series A funding
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Eruptions with a Wireless Sensor Network Geoffrey Werner-Allen∗ ‚ Jeff Johnson† ‚ Mario Ruiz‡ ‚ Jonathan Lees‡ ‚ and Matt Welsh∗ University {werner‚ mdw}@eecs.harvard.edu † University of New Hampshire jeff.johnson@unh.edu ‡ University of North Carolina {mruiz‚ leesj}@email.unc.edu ∗ Harvard Abstract— This paper describes our experiences using a wireless sensor network to monitor volcanic eruptions with low-frequency acoustic sensors. We developed a wireless sensor array and deployed it in July
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